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Physical and biophysical deterioration of stored plantain chips (Musa sapientum L.) due to infestation of Tribolium castaneum Herbst (Coleoptera: Tenebrionidae)

100%

Babarinde S. A., Babarinde G. O., Olasesan O. A.

Journal of Plant Protection Research

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2010

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tom 50

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nr 3

Plantain chips (Musa sapientum L.) were infested with Tribolium castaneum Herbst in the laboratory (64±5% relative humidity and 30±2°C temperature) to evaluate physical and biochemical losses of the chips due to pest damage. Varying levels(4, 8 and 12) of T. castaneum adults were introduced into 20 g plantain chips. An uninfested 20 g of chips served as the control. At 2 and 4 months after infestation (MAI), data on weight loss of chips and the cumulative number of T. castaneum adult, were taken. The samples were then analyzed for proximate and mineral element composition. Infestation level affected weight loss and final insect count. When chips were stored for 2 months, 7.3 cumulative adults obtained in a sample infested with 12 adults wassignificantly higher than the 4.0 adults obtained in a sample infested with 4 adults. When stored for 4 months, 5.3% weight loss due to 12 initial adults was significantly higher than weight loss recorded in other lower levels ofinfestation. The proximate analysis revealed that dry matter, ash and crude fibre were significantly reduced with storage period and initial insect level.Fat, crude protein and moisture increased with infestation level and storageperiod. In uninfested plantain chips, calcium level was not affected with storage period, while phosphorous and iron were significantly reduced with storage period. Both, the level of infestation and storage period, caused significant reduction of the studied mineral elements. There was an interactive effect of the storage period and infestation level for all studied parameters in the biochemical analysis.

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Susceptibility of the selected crops in storage to Sitophilus zeamais Motschulsky in southwestern Nigeria

100%

Babarinde S. A., Sosina A., Oyeyiola E. I.

Journal of Plant Protection Research

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2008

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tom 48

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nr 4

541-550

Susceptibility of the selected Nigerian cultivars of twelve crops to Sitophilus zeamais Motschulsky was evaluated in the laboratory (28 ± 2°C temperature and 69 ± 5% relative humidity). The crops were: maize (Zea mays L.), millet [Pennisetum glaucum (L.) X R. Br.], sorghum [Sorghum bicolor (L.) Moench], rice (Oryza sativa L.), and yam (Dioscorea rotundata Poir). Others were cassava (Manihot esculenta Crantz), pepper (Capsicum annuum L.), cowpea [Vigna unguiculata (L.) Walp], groundnut (Arachis hypogaea L.), melon [Citrullus lanatus (Thunb.)], soybean [Glycine max (L.) Merr.] and bambara groundnut [Vigna subterranea (L.) Verdc]. The result of antixenosis prescreen shows that S. zeamais preferred cereals and tubers to legumes and oil crops. S. zeamais preference for maize was highest at 1, 24 and 48 hours after infestation (HAI) and was not significantly different from its preference for pepper, millet, sorghum and yam. At 48 HAI, S. zeamais preference for cereals, tubers and pepper was not significantly different. Soybean and bambara groundnut were the least preferred species. The highest level of damage was observed in cereals and tubers. Millet suffered significantly greater damage than maize at 2-8 weeks after infestation (WAI). Damage done to maize was not significantly different from damage done to tubers at 6 and 8 WAI. Pepper, legumes and oil crops suffered significantly lower levels of damage than maize throughout the experimental period. Cumulative number of adult was significantly higher in small-seeded cereals than maize and was of the order: sorghummilletrice. Cowpea, soybean and pepper did not support reproduction and longevity of S. zeamais. Longevity was best supported by cassava. The results show that in storage, cereals and tubers were more susceptible to S. zeamais infestation than legumes, spices and oil crops.

3

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Rural farmers’ perceptions, knowledge and management of insect pests of fruit vegetables in Ogbomoso Agricultural Zone of Nigeria

88%

Olaniran O. A., Babarinde S. A., Odewole A. F., Aremu P. A., Popoola K.

International Letters of Natural Sciences

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2014

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tom 20

Surveys were carried out in five local government areas of Ogbomoso Agricultural Zone Nigeria during planting season in 2010 to investigate rural farmers perceptions and management practices of insect pests of fruit vegetables. The survey involved 150 randomly selected farmers who were interviewed using structured questionnaire. Fruit vegetables planted by the farmers were okra, tomatoes, pepper and garden egg. Reasons given by farmers for cultivating fruit vegetables were significantly favored by age category, educational qualification, and secondary occupation of farmers (x2 = 4.757, P = 0.029). Field insect pests were perceived as the major production constraint to fruit vegetables in this zone. Majority of the farmer estimated 78.4 % rated insect pest as the most serious pest infesting fruit vegetables, the insect pests were grasshopper (Orthoptera), beetles (Coleoptera) and caterpillar (Lepidoptera). Integrated pest management module consisted basically of chemical and cultural control strategies, with weeding, shifting cultivation and crop rotation as main cultural control methods. More than 76.7 % of the farmers make use of cultural control because of unavailability and cost of chemical insecticides. Only 23.3 % had access to chemical insecticides in controlling insect pest of fruit vegetables.

Ograniczanie wyników

2 Journal of Plant Protection Research

1 International Letters of Natural Sciences

3 Babarinde S. A.

1 Aremu P. A.

1 Babarinde G. O.

1 Odewole A. F.

1 Olaniran O. A.

1 Olasesan O. A.

1 Oyeyiola E. I.

1 Popoola K.

1 Sosina A.

1 2014

1 2010

1 2008

Physical and biophysical deterioration of stored plantain chips (Musa sapientum L.) due to infestation of Tribolium castaneum Herbst (Coleoptera: Tenebrionidae)

Susceptibility of the selected crops in storage to Sitophilus zeamais Motschulsky in southwestern Nigeria

Rural farmers’ perceptions, knowledge and management of insect pests of fruit vegetables in Ogbomoso Agricultural Zone of Nigeria